Using sulfur and gypsum to lower soil pH...

[Rickypsimer]

Hey guys I got this bag of organic soil acidifier and what I need to know is basically how to use it and how long will it take to have an effect on my soil I've got six plants in here three pots have different soil than the other three and it's a 7 pH so I'd like to bring it down to about 6.5 6.3 just like the other three pots. I sprinkled in a tablespoon of this so hopefully if it works I'll do it on the other two...

 

[Dabbie McDoob]

take that stuff slowly. A little goes a long way. Why are you worried about Ph in soil?
Is your water hard? or have weird alkalinity?

 

[Rickypsimer]

take that stuff slowly. A little goes a long way. Why are you worried about Ph in soil?
Is your water hard? or have weird alkalinity?

yeah need to bring down the pH on 3 organic soil pots I have going

 

[cannabineer]

Gypsum only works on some soils. A more general acidulant is aluminum sulfate, beloved of Hydrangea color manipulators.

 

[IIReignManII]

The gypsum isnt going to do what the elemental sulfur can do.

 

[Sup Im BirDy]

The gypsum isnt going to do what the elemental sulfur can do.

It has both in that bag I actually bought some myself because the hardware stores and garden shops were closed and I needed some fast due to a lime over load. How long will these typically take to start having an effect on pH?

 

[LinguaPeel]

How long will these typically take to start having an effect on pH?

No one will give you an actual useful answer on these neo hipster bro myth bunk weed forums. In my opinion as a real life farmer, it won't. Maybe temporarily in about a year? Sulfur has to be broken down by microbes before it will effect pH. The effective microbial metabolite in that situation is sulfuric acid. Aka battery acid. But according to forum tards sulphuric acid kills microbes so don't use it!

 

[Sup Im BirDy]

Thanks man, I’m doing organic with mychoz using recharge so I appreciate you telling me that I was just wondering how long it’d take for them to break it down. I tossed humic acid in my soil to lower ph. pH is too high at 7.7 contemplating a flush but idk. 3 weeks left and got a bad ph issue that’s been going on for a week cause I watered and it got worse.